Plow attachment.



K. SGHULTE.

PLoW ATTACHMENT.

APPLIOATION FILED APR. 25, 1912. 1,074,898.

Patented 0015.7, 1913.

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PLOW ATTACHMENT.

APPLICATION FILED AP1 .25, 1912.

L'LSQS, Patented 0013. 7, 1913.

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naar. soHUL'rE, or wooDwaRDviLLn, MARYLAND.

PLOV ATTACHMENT.

Specification of Letters Patent.

Patented Oct. 7,1913.

Application filed April 25, 1912. Serial No. 693,057.

To all whom, t may concern.'

Be it known that l, KARL, SorrULrrn, a citizen of the United States,residing at `Woodwardville, in the county of Anne Arundel and State ofkMaryland, have invented cert-ain new and useful improvements in FlowAttachments, of which the following is a specification, reference beinghad therein to the accompanying drawing.

This invention relates to harrow attachments for plows, and has for itsobject the production of an eiiicient harrow attachment which may beattached to the ordinary plow beam.

Another object of this invention is the production of an efficientharrow attachment which may be conveniently attached to a plow beam, andwhich may be readily thrown up out of engagement with t-he ground, ifthe barrow should come into engagement with a rock, stump, or otherobstruction.

ln the drawings: Figure 1 is a perspective view of the harrow attachmentsecured to the rear of the plow beam. Fig. 2 is a rear View of theharrow attachment the plow being shown in dotted lines. Fig. 3 is acentral longitudinal section through the harrow attachment, and aportion of the plow beam, the plow blade, and harrow disk being shown indotted lines. Fig. l is a longitudinal sectional view of the rear end ofthe plow beam showing the manner of attaching Athe spring arm to thebeam. Fig. 5 is a transverse section through the plow beam and clamp forsecuring the harrow attachment to the beam. Fig. 6 is a detailperspective of the 4modified form of the invention showing the manner ofattaching the plow attachment to a metallic beam. Fig. 7 is a detailedperspective of the manner of connecting the lower end of the quadranttothe hai-row connecting tongue.

By considering Fig. 1, it will be seen that the present harrowattachment may be secured to the ordinary plow beam, and by swinging theharrow attachment. upon the quadrant supported to the rear of the beam,the harrow disk may be thrown up out of engagement with `anyobstruction. By referring'to Fig. 1, it will be seen that 1 designatesthe plow beam which carries the usual plow 2 and the rear end of theplow beam 3 projects rearwardly of the plow blade and is engaged by theharrow attaching clamp as illustrated in Figs. 1 and 3.

The harrow attachingclamp comprises an upper plate 4c, and a lower plate5. rlhese plates have divergently bent ends 6 and 7, the ends of theupper plate l extending upwardly and the ends of the lower plate 5extending downwardly. Bolts 8 pass through the elongated slots 9 formedin the plates l and 5, said bolts being provided with enlarged heads 10at their lower ends, and having nuts 11 threaded at their upper ends forfirmly clamping the bolts 8 in connection .with the plates 1 and 5. Byhaving the ends of the plates 4 and 5 diverging as illustrated `clearlyin Fig. 2, it will be seen that the bolts 8 may be adjusted laterally tothe desired width to accommodate different width plow beams and,furthermore, by having the ends of the plates l and 5 extendingdivergently a firm clamp will be produced which will act as a nut lockfor preventing the nuts 1l from becoming accidentally detached from thebolts 8. The lower plate 5 is provided with a `socket portion 12 whichsocket portion receives the harrow connecting tongue 13. The harrowconnecting tongue 13 extends longitudinally of the rear end 3 ofthe beam1 and is bent downwardly to form a depending portion le intermediate itsend. The tongue 13 is also bent near its free end rearwardly asindicated at 15 so as to extend in a line parallel to the inner end ofthe tongue 13 which end is secured to the plo-w beam 1. rlhe portion 15of the harrow supporting tongue is bent to form a substantially U-shaped pocket 16, which pocket forms an eiiicient support for thequadrant 17 and supporting links 1S, hereinafter described. Thesupporting links 18 comprise elongated rectangular bodies placed uponeach side of the iattened lower end 19 of the quadrant 17. A bolt 2O ispassed through the lower U-shaped pocket 15, through the plates 18, andlower apertured end 19 of the quadrant 17 thereby firmly holding thequadrant and links in engagement with the tongue 13. The quadrant 17 isthickened near its lower end as indicated at 21 so as to overhang theupper edges of the links 18, and thereby prevent the independent.lateral swing of the 4quadrant 17.

A harrow operating arm 22 is pivotally secured between the `outer endsof the plates 18 to one side of the pivot bolt 2O as illustrated in Fig.2, land this barrow operating arm 22 is .provided with a rearwardlyextending portion 23, said rearwardly extending portion 23 having afork-shaped end 24 comprising a pair of box portions 25. These boxportions 25 may be formed of any desired construction to lubricate theharrow supporting shaft 26. The harrow disk supporting shaft 20 carriesa plurality of disk spacing members 27 of the yordinary type and betweenthese spacing members are secured the harrow disks 28. The outer end ofthe harrow disk-supporting member 26 carries a forwardly extending linkmember 29, which link member carries an eye 30, which eye is engaged bymeans of abrace rod 31. This brace rod 31 may be secured to the beam atany desired point in the usual manner to brace the outer end of theharrow disk-supporting member or rod 26.

A tension operating armv 32 is pivotally secured between the plates 18to one side of the quadrant 17, and this arm 32 is provided with anupwardly extending angle portion 33, said upwardly extending angleportion 33 being provided with a laterally bent U- shaped pocket portion34. A spring 35 of a substantially U-shaped structure has its upper end36 positioned within the Vsubstantially U-shaped upper end 34 of theupwardly extending portion 33 of the -arm 32. The lower end of thespring 35 is provided 'with an angularly extending portion 37 whichportion is securely bolted to a wheel supporting fork 38, by means of abolt 39. A locking plate 4() is carried by the bolt 39 and engages theunder face of the nut 41, and constitutes a nut lock for preventing theloosening of the nut 41, Afrom the bolt 39. A supporting or steadyingwheel 42 is carried by the fork 38.

A spring supporting plate 43 is secured to the side of the plow beam 1and is securely held in engagement therewith by means of one of thebolts 8 of the harrow attaching clamp. The spring supporting plate 43 isprovided with a sharpened inturned end 44 which fits into the side ofthe plow beam 1 and being spaced somewhat to the rear of the bolt 8, avery eliicient securing means has thereby been produced. The front endof the plate 43 is provided with an angularly extending foot 45 throughwhich is passed the arm 46 of the tension spring 47. The rear end of thearm 46 is held in engagement with the plate 43 by means of an eye 48,and the inner end of the arm 45 is bent laterally so as to form a finger49 which finger limits the longitudinal movement of the arm 46 inaforward direction upon the plate 43. The end 49 which extends downwardlywhen in its normal position will prevent the spring 47 from saggingdownwardly since this end will support the spring 47 in a position whichis substantially right angular to the plow beam 1. The tension spring 47is provided with a coil 50 `bolt 57 carried by the downwardly extendingportion 14 of the tongue 13, and this link 56 carriesat its opposite enda pair of spaced plates 58. These plates 58 carry at their opposite endsan operating foot lever 59 which lever carries a pair of laterallyextending foot-engaging members 60. The ends of the link'supportingmemberk 56 and the foot lever 59 are spaced from each other so as toallow room for the quadrant 17.

The quadrant 17 passes between the ends of Y the lever 59 and link 56and said quadrant is formed on a suflicient arc to allow the lever to beswung over the quadrant 17 as illustrated clearly in Fig. 3.

A plunger supporting box 61 straddles the rear end of the plates 58as-illustrated in Figs. 1 and 2, and within this box 61 is Vcarried alocking bolt 62, said locking bolt provided with a reduced end 63. Acoil spring 64 is wound upon the bolt 62 and this coil spring normallybears against an enlarged head portion 65 for exerting an outwardpressure upon the bolt 62. A plunger operating treadle 66 is providedwith a pair of downwardly extending ears 67, which ears straddle thelever 59, and this treadle 66 is connected to the rear end of the bolt62 by means of a ring 68. f

A laterally extending arm 69 is secured to each of the plates 58, saidarms 69 being provided with upwardly and downwardly extending feet 70for holding the arms in firm engagement with the plates 58. The

arms 69 are provided intermediate theirends with depending spaced ears71 between which ears are pivotally mounted the inner end of the linkmembers 72. The outer ends of the link members 7 2 are connected Ytocol-` lars 73, which collars engage respectively the harrow operatingrod 22, and the tension operating arm 32. The outer endsV of the arms 69are ared or widened as illustrated at 74 to allow a slight lateral swingof said arms 69 upon the links 72, without fear of the ends 74disengaging the upper edges of the links 72.

From the foregoing description, it will be seen that when the harrow isbeing operated, yor is drawn down in engagement with the ground, thebolt 62 will engage the lower notch 75 and will, thereby, be held in afirm position, so as to effectively operate upon the soil which has beenthrown up in the furrow. f

Owing Yto the fact that the quadrant L7 is spaced from the rear end oftheplow beam nor/ases it will be seen that the plow may be swung fromside to side so as to keep the same in a direct line without fear ofinterfering with the harrow disks and supporti-.ng wheel 42. It will befurther obvious that the harrow and supporting wheel are so arranged asto not be in the way of the driver ot the plow and owing to thisposition the driver of the plow may wall: easily in the rear of the plowbeam, and yet be in such a position as to throw the hai-row out ofengagement with any obstruction, at a moments notice.

As illustrated in Fig. 1, it will be seen that the wheel 42 travels uponthe land side of the plow and that the harrow disks travel in the furrowand although a lett hand plow has been illustrated in the presentdrawing, it should be understood that the present device may be Sointerchanged as to accommodatel itselr" to a right-hand plow.

When it is desired to litt the harrow out ot engagement with the furrowso that the plow may pass an obstruction, the treadle G6 is depressedupon the lever 59 so as to draw the plunger 62 out of engagement withthe lower notch 75. By raising the outer end ot the lever 59 intoengagement with one of the upper notches 76, the harrow disk may bethrown up at a radical angle so as to be out oit engagement with anyobstruction. The position taken by the harrow disk is clearly shown inthe rear view in lFig. 2. The tension spring 35 likewise lifts the wheelout ot engagement with the ground to be out of the way when the hai-rowis not in use.

lt' the wheel 42 should meet an obstruction, it will be seen that thespring 35 will allow the wheel to yield upwardly without any unduestrain coming upon the arm 33 or the supporting portions for said arm.This spring 47 will constitute a steadying means tor the spring 35 andprevent the spring 35 from twisting upon its connecting point where thesame engages the substantially U-shaped upper end 34 ot the arm 32. Bymeans of this spring 47 the spring 35 will be held in its correctposition parallel to the plow beam. lt, ot course, should be understoodthat the distance of the spring 47 relative to the spring 35 may beregulated by means ot causing the hooked end 52 of the spring 47 toengage different links in the chain 53. lt will be seen, by carefullyconsidering Fig. 2 that since the outer ends of the arms 69 overhang thelinks 72, the said overhanging ends will facilitate the forcing of thebarrow disk to an operative position owing to the tact that these outerends will press against. the upper ends of the links 72.

As illustrated in Fig. 6, which disclosed the modiied form ot the devicefor attaching the attachment tothe plow beam, the tongue 13 may betwisted to form an upwardly extending end 14 which end is adapted to titsnugly against the beam 15. This twisted upwardly extending end 14 isclamped rmly to thel beam 15 by means ot a clamping plate 16. Thisclamping plate 16 is held in engagement with the twisted end 14 by meansof transversely extending bolts 17. @ne ot the bolts 17 passes over thetop ot the beam 15, and the other bolt 17 passes under the beam 15 asindicated in Fig. 6. The spring supporting plate 43 is clamped betweenthe beam 15 and the twisted end 14 similar to the manner in which theplate 43 is held in engagement with the beam 1 by means ot' the bolt 8as illustrated in Fig. 1. The spring 47 will constitute a means forbracing the forward end of the spring 35 and will hold this springagainst twisting movement upon the member 33. lt will also be seen thatthis spring 47 will allow the device to be oper ated by swinging thelever 59 owing to the tact that the spring 47 may yield .hackward andforward to accommodate the ditferent adjusted positions to which theharrow disks 27 are thrown.

Of course it should be understood that the attachment as above describedand illustrated in the drawings may be attached to a plow beam wherein asingle plow is used, or may be attached to the trame oit a gang plow andstill perform the function as Set forth in the above specification.

1What is claimed is l. In a plow, the combination with a support, ot' aharrow attachment comprising a rearwardly ext-ending tongue, means torclamping said tongue to said support, a harrow operating arm supportedby said tongue, barrow disks carried by said harrow operating arm, atension operating arm secured to said rearwardly extending tongue, alever connected to said harrow operating arm and said tension operatingarm tor throwing said arms to an inoperative position, a supportingwheel, a spring interposed between said supporting wheel and saidtension operating arm, and tension means carried by said support andengaging said spring tor holding said spring and wheel parallel withsaid support.

2. A harrow attachment for a plow comprising a connecting tongue, aclamp for securing the same to a support of a plow, said tongue providedwith a downwardly extending` portion tern'iinating into a rear wardlyextending neck, a substantially U- shaped socket carried by the rear endof said neck, arm supporting links carried within said socket, aquadrant interposed between said links and extending upwardly, a harrowSupporting crank arm connected between said links upon one side of saidquadrant, a tension supporting crank arm Secured between said links uponthe opposite side of said quadrant, an operating link pivotally securedto said tongue, latch means associated therewith for engaging saidquadrant and holding said link and crank arms in an inoperativeposition, laterally extending arms associated with said last-mentionedlink, and connecting links engaging said'laterally extending` arms andcrank arms for raising the same to an inoperative position when saidlatch means is swung upon said quadrant.

3. A harrow attachment ot the class described comprising a tongue, aclamp for connecting said tongue to a plow beam, said tongue terminatingin a U-shaped supporting pocket, a quadrant supported by said pocket, alink connected to said tongue, an operating lever associated with saidlink, a latch carried by said lever, coperat-ing with said quadrant. forholding said link in a set. position, crank arms connected to saidsubstantially U-shaped pocket, laterally extending arms' connected tosaid link, depending ears carried by each of said laterally extendingarms, connecting members carried; by said crank arms, and connectinglinks engaging said ears of said laterally extending arms, and saidconnecting members for throwing said crank arms to an inoperativeposition when said lever is thrown upwardly upon said quadrant, and aharrow disk associated with one of said crank arms.

t. A harrow attachment for a plow comprising a rearwardly extendingtongue, means connecting said tongue to a plow beam, a quadrant carriedby said tongue, a lever carried by said tongue and working upon saidquadrant, laterally extending crank arms carried by said tongue andpivotally secured thereto and capable of having a vertical swinging`movement, harrow disks associated with one or" said crank arms, tensionspring means carried by the other crank arm for facilitating` theraising of said harrow disks to an inoperative position, means forengaging said other crank arm and supporting the same above the ground,laterally extending arms carried by said lever, links connecting saidlaterally extending arms with said crank arms and causing said crankarms to be raised vertically when said lever is' raised, and saidlaterally extending arms provided with overhanging ends for engagingsaid links wher-eby said links will be forced downwardly when said leveris lowered and said crank arms will be thrown to their operativeposition.

5. A harrow attachment of the class de- 'scribed comprising a rearwardlyextending tongue, a lever pivotally secured thereto, crank arms carriedby said tongue and capable of having vertical movement, harrow diskssecured to one of said crank arms, said crank arm which supports saidharrowrdisks extending rearwardly, the other crank arm constituting aspring tension supporting arm and provided with an upwardly extendingportion, said upwardly extending' portion engaging a substantiallyV-shaped spring, an idler wheel engaging said spring, and saidV springnormally exerting an upward pressure upon said upwardly extending end Y'of said last-mentioned crank arm.

6. In a plow the combination with a beam, a harrow attachment connect-edthereto, a clamping member for said harrow attachment comprising anupper and lower plate, bolts connecting Vsaid plates, a tension springsupporting plate placed between one of said bolts and said beam,'saidplate provided with a sharpened inturned rear end, said rear endengaging said beam at a distance from saidV bolt, the forward end ofsaid plate provided with a laterally extending foot, an eye carried bysaid plate, a tension spring passing through said foot and eye andprovid-ed with a downwardly extending end, said spring extendinglaterally ot said beam and provided with an outer hook, tension meansassociated with said harrow attachment for assisting in raising saidharrow from the ground, and means for connecting said first-mentionedspring with said tension means tor holding said tension means parallelwith said beam.

7. A harrow attachment for a plow com-V prising a connecting tongue,means for securing the same to a beam of a plow, a quadrant caried bysaid connecting tongue, a harrow supporting crank arm connected to oneside of said quadrant, a roller supporting crank arm secured to theopposite side ot' said quadrant, an operating'link pivotally connectedto said tongue, means carried thereby for engaging said quadrant andholding said link and crank arms in an inoperative posit-io-n, laterallyextending arms on said link, and means connecting said laterallyextending arms and said crank arms for raising the same to aninoperative position.

ln testimony Vwhereof l hereunto aiiix my signature in presence of twowitnesses.

KARL SCHULTE.

Copies of this patent may be obtained for :ive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

